In several years of experimental studies of physical balance as a factor
in determining the value of lamb fattening rations, more than 2000 lambs have
been fed, and a wide variety of feeds have been employed. The experimental
rations have been made up of feeds ranging from high palatability and nutritive
value, such as corn, cottonseed meal, and alfalfa hay, to combinations
which have finitely lower nutritive value, particularly the roughages of
matured grain varieties of sorghums.